Cd1-5 was period which started 3rd October
Cd 16 I had a positive mid****** urine lh surge test (that night)
Cd 17 I was still testing positive to the lh surge
Cd 18 - negative for lh surge (? 1 dpo)
Today is cd 27 so does that make me only 7dpo?

Yeah I thought 10-11 DPO too actually. In any case if you tested before now or 12 DPO you aren't likely to get an accurate result. The earliest bfp I have seen was 12 DPO. So you're spot on about testing on Thursday

Yeah I thought 10-11 DPO too actually. In any case if you tested before now or 12 DPO you aren't likely to get an accurate result. The earliest bfp I have seen was 12 DPO. So you're spot on about testing on Thursday